If other codes are present, they must be addressed first. The P0128 is a less common problem in vehicles. Causes. A stuck open or prematurely opening coolant thermostat. It is a Coolant Temperature below Thermostat Regulating Temperature meaning that the engine is basically cold. Cost of diagnosing the P0128 BMW code Labor: 1.0 The cost of diagnosing the P0128 BMW code is 1.0 hour of labor. P0128 Causes: Dodge Ram. Causes of DTC code P0128 Generic A code P0128 can be caused by one or more of the following problems: The thermostat may be stuck leaky. P0128 is telling your fix sensor that your car’s coolant thermostat is operating below the regulating temperature. Causes. BAT Team Discussions for P0128. If any ECT or AAT DTC are present, diagnose and repair those DTC before continuing with this test procedure. How do I fix code P0128 AUDI? P0115: This code indicates an issue with the engine coolant temperature circuit ; P0116: This code means an issue with the engine coolant temperature circuit range; P0117: This code means that there is a low input in the engine coolant temperature circuit; P0118: however, this code means … Possible causes of OBD code P0128 Cadillac A code P0128 Cadillac may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor Faulty intake air temperature (IAT) sensor . Check coolant level 2. Warning : Never open the cooling system when the engine is hot. A code P0128 may mean that one or more of the following has happened: Low engine coolant level; Leaking or stuck open thermostat (likely) Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor; Faulty intake air temperature (IAT) sensor; Possible Solutions. Low engine coolant level Insufficient warm up time Faulty engine coolant temperature sensor Engine coolant temperature sensor harness is open or shorted Engine coolant temperature sensor circuit poor electrical connection How is the P0128 2003 INFINITI G35 code repair? Cooling system issues. This causes the Fuel System to go back into a warmup mode, which is a … The engine control module uses the Engine Coolant Temperature (ECT) sensor to determine whether or not to trigger a OBD-II P0128. Low engine coolant level Insufficient warm up time Faulty engine coolant temperature sensor Engine coolant temperature sensor harness is open or shorted Engine coolant temperature sensor circuit poor electrical connection . Here are the most common causes of P0128: Thermostat Stuck Open– Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. Possible causes: Low coolant level. Possible causes of OBD code P0128 Land Rover A code P0128 Land Rover may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor Faulty intake air temperature (IAT) sensor . Step 1. The Coolant Temperature Sensor (ECT) may be defective. Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s going to be the thermostat that is throwing the code. Initialized in OBD (on-board diagnostic) and OBD II (vehicles manufactured from 1996 and beyond), the sensor is immersed in the coolant system in order to monitor the coolant protection level. Symptoms Possible causes - Insufficient warm up time - Low engine coolant level - Leaking or stuck open thermostat - … Thermostat Operation. If there is excessive rust and poor coolant condition this can clog up the cooling system or cause the thermostat to stick. The ECT (Engine Coolant Temperature) cable system can be short. Check coolant level and condition. Labor: 1.0 The cost of diagnosing the P0128 2010 FORD FUSION code is 1.0 hour of labor. Hard To Start troubleshooting P0128 Definition: Coolant temp is always low Explanation: The powertrain control module verifies that the engine is at proper operating temp. If other codes are present, they must be addressed first. The warm-up time is not enough. Check coolant level and condition. a. Note: Please be sure the engine is turned off and cool when doing work on the cooling system. Scan your Chevrolet to verify P0128 is the only code present. Scan your Honda to verify P0128 is the only code present. Low coolant level. Visually inspect the related wiring harness and connectors. Leaking or stuck open thermostat Low engine coolant level Insufficient warm up time Faulty engine coolant temperature sensor Engine coolant temperature sensor harness is open or shorted Engine coolant temperature sensor circuit poor electrical connection How is the P0128 code repair? Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s going to be the thermostat that is throwing the code. What does this mean? Causes. P0128 Mercedes-Benz Engine Coolant Temperature Below Thermostat Regulating Temperature. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour. Cost of diagnosing the P0128 2010 FORD FUSION code. P0128: This code means that the coolant temperature is below the thermostat regulating temperature. Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s going to be the thermostat that is throwing the code. P0128 Symptoms. P0128 is a diagnostic trouble code (DTC) for "Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)". P0128 Causes: Mazda Miata. Possible causes of OBD code P0128 Mini A code P0128 Mini may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor Faulty intake air temperature (IAT) sensor . P0128 Mercury Engine Coolant Temperature Below Thermostat Regulating Temperature. Causes. Here are the most common causes of P0128: Thermostat Stuck Open– Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. P0128 Causes: Mercury Grand Marquis. Low engine coolant can cause all sorts of problems in the cooling system. Start by checking the "Possible Causes" listed above. When diagnosing for this code, make sure you verify both the electric and mechanical cooling fans are not stuck at “On” position, as this will cause the engine to run at very low operating temperature. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Possible causes of OBD code P0128 Mercedes A code P0128 Mercedes may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor Faulty intake air temperature (IAT) sensor . Possible Solutions. P0128 Possible Causes. If other codes are present, they must be addressed first. Scan your Chrysler to verify P0128 is the only code present. If there is excessive rust and poor coolant condition this can clog up the cooling system or cause the thermostat to stick. Probable cause: 1. If there is excessive rust and poor coolant condition this can clog up the cooling system or cause the thermostat to stick. Thermostat defective 3. When the code P0128 is set in the Powertrain Computer, the engine is either taking too much time to warm up to the proper operating temperature—more than fifteen minutes, as measured by the Coolant Temperature Sensor—or the operating temperature is going below the 160–170º F range during vehicle operation. Low coolant will not provide enough temperature protection to sufficiently control the internal heat. Check coolant level and condition. P0128 Indicates that the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time after starting the engine. Here are the most common causes of P0128: Thermostat Stuck Open– Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. Here are the most common causes of P0128: Thermostat Stuck Open– Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. P0128 Diagnostic Code Theory for Shops and Technicians When the P0128code is set in the Powertrain Computer, the engine is either taking too much time to warm up to the proper operating temperature—more than fifteen minutes, as measured by the Coolant Temperature Sensor—or the operating temperature is going below the 160–170º F range during vehicle operation. If other codes are present, they must be addressed first. If the thermostat is allowing full coolant flow through the radiator and the coolant temperature is still rising, the fan is activated to increase the temperature drop of the coolant across the radiator. There is a low level of engine coolant. Scan your Nissan to verify P0128 is the only code present. When a trouble code P0128 exists by itself, usually a shop technician will suspect a fault engine coolant temperature sensor or stuck open thermostat. Diagnose code P0128 Thermostat Rationality. For example, the cooling fans can malfunction causing them to stay on when they're not supposed to be. Sometimes cars have weird electrical problems. Step 2: Electrical Problems: Is The Fan Stuck On? Check the "Possible Causes" listed above. Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s going to be the thermostat that is throwing the code. P0128 Causes: Jeep Compass. P0128 Causes: Dodge Caravan. Here are the most common causes of P0128: Thermostat Stuck Open– Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. As a result, the ECT sensor can be compromised. Visually inspect the related wiring harness and connectors. Symptoms of coolant temperatures being too low will first be the check engine light. Possible Solutions. Causes. The system is under pressure. Causes. This cools the engine excessively at times and causes the p0128 code. Most auto repairs shops charge between $75 and $150 per hour. There are two main causes for P0128: The most common cause is an engine coolant thermostat that has stuck open or is opening prematurely. Possible Solutions. Before getting into in-depth knowledge about the P0128 Code, first of all, know what does a P0128 means and how it works in your car. Don’t worry we are here to explain how long can you drive with a P0128 code. Start by checking the "Possible Causes" listed above. Possible Solutions. Possible Solutions. Also, make sure you verify the readings of your Intake Air Temperature sensor are right, not too hot or too cold in relation to both air temperature and under-hood air temperature. Check coolant level and condition. The auto repair labor rates vary widely across the country, and even within the same city. Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s going to be the thermostat that is throwing the code. If you sense or feel this may be the cause of the p0128 code on your car, then the way to diagnose this is to locate the radiator hose then you have to touch it to observe the temperature of the coolant to see how hot it is when the coolant begins to flow through the radiator hose. If there is excessive rust and poor coolant condition this can clog up the cooling system or cause the thermostat to stick. Possible causes of OBD code P0128 Saab A code P0128 Saab may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor Faulty intake air temperature (IAT) sensor . Our certified mobile mechanics can come to your home or office to perform the Check Engine Light is on diagnostic inspection. What causes the P0128 code? 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